/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Mesh/Criteria/Criterion.h
static double EvaluateSag ( const [FPoint](API\Runtime\CADKernel\CADKernel\Math\FPoint) & PointPoint, const [FPoint](API\Runtime\CADKernel\CADKernel\Math\FPoint) & PointNext, const [FPoint](API\Runtime\CADKernel\CADKernel\Math\FPoint) & PointMiddle, double & Length )